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GCN Circulars

GCN Circulars are rapid astronomical bulletins submitted by and distributed to community members worldwide. They are used to share discoveries, observations, quantitative near-term predictions, requests for follow-up observations, or future observing plans related to high-energy, multi-messenger, and variable or transient astrophysical events. See the documentation for help with subscribing to or submitting Circulars.

Search for Circulars by submitter, subject, or body text (e.g. 'Fermi GRB').
To navigate to a specific circular, enter the associated Circular ID (e.g. 'gcn123', 'Circular 123', or '123').

10 results found.

  1. GRB 100905A: Swift/UVOT Upper Limits
  2. GRB100905A: Optical upper limits at IAO
  3. GRB100905A: MITSuME Okayama optical upper limits
  4. GRB 100905A: Swift-XRT refined analysis.
  5. GRB 100905A: UKIRT zJHK Observation
  6. GRB 100905A: Enhanced Swift-XRT position
  7. GRB 100905A: Swift-BAT refined analysis
  8. GRB 100905A: MASTER Prompt Optical Observations
  9. GRB 100905A: Faulkes Telescope North observations
  10. GRB 100905A: Swift detection of a burst

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